<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <!-- 引入axios文件 -->
  <script src="./node_modules/axios/dist/axios.min.js"></script>
  <style>
    body {
      margin: 0;
      padding: 30px;
    }

    a {
      text-decoration: none;
    }

    table,
    td,
    th {
      border: 1px solid black;
      /* 边框合并 */
      border-spacing: 0;
      border-collapse: collapse;

      text-align: center;
    }

    th,
    td {
      padding: 5px 10px;
    }
  </style>
</head>

<body>
  <h1>用户列表</h1>
  <a href="./add.html">添加用户</a>
  <br /><br />
  <table>
    <thead>
      <tr>
        <th>id</th>
        <th>用户名</th>
        <th>密码</th>
        <th>操作</th>
      </tr>
    </thead>

    <tbody></tbody>
  </table>

  <script>
    //获取table对象
    var tbody = document.querySelector("tbody");

    //通过axios发送异步请求,获取数据
    axios.get("http://localhost:3000/users").then((res) => {
      //获取所有用户的数组
      var arr = res.data;
      console.log(arr);

      //将用户数组中的js对象转成tr的dom字符串,拼接成一个完整字符串,赋给table对象
      tbody.innerHTML = arr.map((item) => {
        return `<tr>
                  <td>${item.id}</td>
                  <td>${item.username}</td>
                  <td>${item.password}</td>
                  <td>
                     <a href="./edit.html?id=${item.id}">编辑</a>
                     <a href="" onclick='deleteItem(${item.id})'>删除</a>
                  </td>
                </tr>`
      }).join("")
    })

    //实现删除的方法
    function deleteItem(id) {
      var res = confirm('你确定要删除吗')
      if (res) {
        axios.delete(`http://localhost:3000/users/${id}`).then(res => {
          location.href = './index.html'
        })
      }
    }
  </script>
</body>

</html>